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Dec-Tam tearing down a Smokestack

ASBESTOS ABATEMENT ON ROUTE 93N - SALEM, NH

Bridges built in New Hampshire between 1958 and 1978 were built with a waterproofing membrane that contained asbestos. This waterproofing was put in place to protect and preserve the concrete portion of the bridge which is located underneath the asphalt.

New Hampshire's Department of Transportation knows it has many bridges that fall into this category and has begun to address them. Dec-Tam was part of a team of consultants and contractors who worked on the state's first bridge on Route 93 North in Salem, NH. This was a test case to uncover best practices, procedures and to devise a plan to address the remaining bridges.

On this project, Dec-Tam established a regulated work area and implemented environmental controls. This aspect of job was particularly interesting because the work area was only about 4 feet wide. It was adjacent to the active highway, located between the concrete barriers and the bridge railing. The highway remained completely open for the duration of the project. To remove the asbestos containing material, six inches of pavement and curbing were removed, and the waterproofing was scraped and ground from the adjacent concrete. The project took approximately one week.

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PROJECT HIGHLIGHTS

Customer
State of New Hampshire - Department of Transportation
Location
Exit 2 Route 93N - Salem, NH
Type
Lead Decontamination
Project Size
200 foot long bridge - approx. 50 tons of ACM
Project Summary
Abatement of a waterproof membrane containing asbestos located alongRoute 93 North which was operating at 100% capacity - no lanes were shutdown.

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“The folks at Dec-Tam were very patient as we dealt with different historic preservationists the end results speak for themselves spectacular. We will work with them again and recommend them to anyone who asks.”
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